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Simplifying
-3 = 77 + -1x2
Solving
-3 = 77 + -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
-3 + x2 = 77 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
-3 + x2 = 77 + 0
-3 + x2 = 77
Add '3' to each side of the equation.
-3 + 3 + x2 = 77 + 3
Combine like terms: -3 + 3 = 0
0 + x2 = 77 + 3
x2 = 77 + 3
Combine like terms: 77 + 3 = 80
x2 = 80
Simplifying
x2 = 80
Take the square root of each side:
x = {-8.94427191, 8.94427191}
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